Pietersite Micro Faceted Cubes measure approximately 4.5mm in size, have a pearly luster, exhibit a medium to deeply saturated range of blue, light grey, brown, black, & beige hues, have excellent micro faceted cube symmetry, show an opaque quality with some stones showing transparency, and these rare gems are a fine example of this South African sourced gemstone. A grade with a consistent diameter drill hole.